The Base-induced Reactions of 2-Halogeno-1,3-diketones in a Variety of Solvents
作者:Tadahiro Wakui、Yoshio Otsuji、Eiji Imoto
DOI:10.1246/bcsj.47.1522
日期:1974.6
The reactions of 2-bromo-2-methyldimedone (1), 2,2-dibromodimedone (6), 2-bromo- and 2-chloro-2-methylcyclohexane-1,3-dione (10a and 10b) and 2-acetyl-2,6-dibromocyclohexanone (14) with an equivalent of sodium acetate in a variety of solvents were studied. The constitutions and proportions of the products obtained by these reactions depended strongly on the structure of 2-halogeno-1,3-diketones and
Base-induced Reactions of 2-Substituted 2-Bromodimedones
作者:Tadahiro Wakui、Yoshio Otsuji、Eiji Imoto
DOI:10.1246/bcsj.47.2267
日期:1974.9
2-dibromodimedone (7) with the weak nucleophilic base gave 2,3-dibromo-4,4-dimethyl-2-cyclopenten-1-one (8), 2-bromo-5,5-dimethylcyclohexane-1,3,4-trione (9) and 2-bromodimedone (10). However, the reactions of 1a and 7 with a strong nucleophilic base such as sodium ethoxide gave mainly the open-chain products, ethyl 3,3-dimethyl-5-oxoheptanoate (5a) and diethyl 3,3-dimethylglutarate (11). On treatment